PDF malware analysis — malicious · cb6099659ee386b0

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 04:53:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 904ee27b588dd95ee606b10204bd53b5 SHA-1: 18776a0b1b0819aa20b2deb47121543be1c4ee1e SHA-256: cb6099659ee386b03407dde0bb44fe5e2840d36f25cbf341a1e92060459651a5

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector, which promises free game hacks and accounts. The document body and heuristics indicate a lure for free game items, likely leading to a phishing or malware download site. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://netcdn.tw/app/479516143/free-minecraft-alt-accounts-game-hack In PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-roblox-bear-mask_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/minecraft-free-android_GM479516143.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/is-roblox-getting-hacked_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-hack-free-updated-2021_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-nowcom_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-money-hack_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/get-robux-free-scrach_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-cheat-indetectable_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/blox-rewards_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000035ac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x35AC	22716 bytes
SHA-256: `0164998fd09d1181af93fbfb5cfb73e2e43781b4a6f967c5f05fd32d86b96b37`
`font_01_sfnt_off0000689f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x689F	18212 bytes
SHA-256: `a587ad5d7ccc78e3894402c93b871667a6b3b423df15bdaf3724955d5b668927`

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